Six labourers were killed and three others injured after part of an under-construction bridge collapsed following a storm over the Betwa river in Uttar Pradesh's Hamirpur district early Friday, officials said.

The incident occurred around 3 am between Parsani and Kandaur villages when several labourers engaged in the bridge construction work were sleeping on the upper portion of a slab when it suddenly gave way, they said. Chief Minister Yogi Adityanath expressed grief over the incident and directed officials to ensure proper treatment of the injured.